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09d23b8918f9ab0f8114f6b94f2faf8bde3fb52a
Analyze and fix the following issue in the Linux kernel code: iavf: Handle ntuple on/off based on new state machines for flow director
Problem Details: ntuple-filter feature on/off: Default is on. If turned off, the filters will be removed from both PF and iavf list. The removal is irrespective of current filter state. Steps to reproduce: ------------------- 1. Ensure ntuple is on. ethtool -K enp8s0 ntuple-filters on 2. Create a filter to receive ...
```diff diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 567435e23936..98116872f6bd 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -4341,6 +4341,49 @@ static int iavf_change_mtu(struct net_device *...
3a0b5a2929fdeda63fc921c2dbed237059acf732
Analyze and fix the following issue in the Linux kernel code: iavf: Introduce new state machines for flow director
Problem Details: New states introduced: IAVF_FDIR_FLTR_DIS_REQUEST IAVF_FDIR_FLTR_DIS_PENDING IAVF_FDIR_FLTR_INACTIVE Current FDIR state machines (SM) are not adequate to handle a few scenarios in the link DOWN/UP event, reset event and ntuple-feature. For example, when VF link goes DOWN and comes back UP adminis...
```diff diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h index e7ab89dc883a..63b45c61cc4a 100644 --- a/drivers/net/ethernet/intel/iavf/iavf.h +++ b/drivers/net/ethernet/intel/iavf/iavf.h @@ -292,6 +292,7 @@ struct iavf_adapter { #define IAVF_FLAG_QUEUES_DISABLED BIT(17) #d...
2c3878820bf0bbd659c2b897add8a011b5e9f2e1
Analyze and fix the following issue in the Linux kernel code: drm/xe/gt: Fix min() with u32 and u64
Problem Details: Fix the following error while building for 32b: In file included from ../drivers/gpu/drm/xe/xe_gt.c:6: ../drivers/gpu/drm/xe/xe_gt.c: In function ‘gt_ttm_mgr_init’: ../include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast [-Werror] 20 | (!!(sizeof((typeo...
```diff diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c index 96d0f5845d87..39df6945e1d9 100644 --- a/drivers/gpu/drm/xe/xe_gt.c +++ b/drivers/gpu/drm/xe/xe_gt.c @@ -183,7 +183,7 @@ static int gt_ttm_mgr_init(struct xe_gt *gt) if (err) return err; gtt_size = min(max((XE_DEFAULT_GTT_SIZE_M...
ebec269c522fc9bb48d11b65456b01adbdecb97d
Analyze and fix the following issue in the Linux kernel code: drm/xe: Fix tracepoints on 32b
Problem Details: Leave the types as u64, but cast the pointers to unsigned long before assigning so the compiler doesn't throw warning about casting a pointer to integer of different size. Also, size_t should use %zu, not %ld. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Rodrigo Vivi <rodrig...
```diff diff --git a/drivers/gpu/drm/xe/xe_trace.h b/drivers/gpu/drm/xe/xe_trace.h index a5f963f1f6eb..d9f921d46b53 100644 --- a/drivers/gpu/drm/xe/xe_trace.h +++ b/drivers/gpu/drm/xe/xe_trace.h @@ -33,10 +33,10 @@ DECLARE_EVENT_CLASS(xe_bo, TP_fast_assign( __entry->size = bo->size; __entry->flags ...
857912c37ea786715e03b5bf25db07e28fc2ba73
Analyze and fix the following issue in the Linux kernel code: drm/xe: Fix some log messages on 32b
Problem Details: Either use the proper format or cast up to 64b depending on the case. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
```diff diff --git a/drivers/gpu/drm/xe/tests/xe_migrate.c b/drivers/gpu/drm/xe/tests/xe_migrate.c index 0f3b819f0a34..03a60d5b42f1 100644 --- a/drivers/gpu/drm/xe/tests/xe_migrate.c +++ b/drivers/gpu/drm/xe/tests/xe_migrate.c @@ -263,9 +263,9 @@ static void xe_migrate_sanity_test(struct xe_migrate *m, struct kunit *te...
760f168db30a5c06893e87c88f25cd3578a8453a
Analyze and fix the following issue in the Linux kernel code: drm/xe: fix xe_mmio_total_vram_size
Problem Details: As also cause issue on PVC, moving back to what we did before stolen was introduced Signed-off-by: Philippe Lecluse <philippe.lecluse@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
```diff diff --git a/drivers/gpu/drm/xe/xe_mmio.c b/drivers/gpu/drm/xe/xe_mmio.c index 88d475dca6db..54d2a94a7519 100644 --- a/drivers/gpu/drm/xe/xe_mmio.c +++ b/drivers/gpu/drm/xe/xe_mmio.c @@ -159,12 +159,8 @@ int xe_mmio_total_vram_size(struct xe_device *xe, u64 *vram_size, u64 *usable_si if (!xe->info.has_flat_...
d8731500721d5ae26819de36c63921f4baaafe00
Analyze and fix the following issue in the Linux kernel code: drm/xe/pcode: fix pcode error check
Problem Details: On DG2 we are now getting: [ 104.456607] xe 0000:03:00.0: [drm] *ERROR* PCODE timeout, retrying with preemption disabled Looks like we just need to invert the error check for xe_pcode_try_request(), which returns zero on success. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Mat...
```diff diff --git a/drivers/gpu/drm/xe/xe_pcode.c b/drivers/gpu/drm/xe/xe_pcode.c index 39712e843728..1a76fe478853 100644 --- a/drivers/gpu/drm/xe/xe_pcode.c +++ b/drivers/gpu/drm/xe/xe_pcode.c @@ -155,7 +155,7 @@ int xe_pcode_request(struct xe_gt *gt, u32 mbox, u32 request, ret = xe_pcode_try_request(gt, mbox, re...
c343bacfad5db03c4156ff3a44e3a5547afb246f
Analyze and fix the following issue in the Linux kernel code: drm/xe: Fix hidden gotcha regression with bo create
Problem Details: The bo_create ioctl relied on the internal ordering of memory regions to be the same, make sure we don't allocate stolen instead of VRAM0. Also remove a debug warning left in. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Philippe Lecluse <philippe.lecluse1@gmail.c...
```diff diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h index 8d8a3332dbc8..8c2cdbe51ab5 100644 --- a/drivers/gpu/drm/xe/xe_bo.h +++ b/drivers/gpu/drm/xe/xe_bo.h @@ -13,10 +13,12 @@ #define XE_DEFAULT_GTT_SIZE_MB 3072ULL /* 3GB by default */ #define XE_BO_CREATE_USER_BIT BIT(0) +/* Th...
60694edf668a5c837d7bf05bd2250388e2ada9a8
Analyze and fix the following issue in the Linux kernel code: drm/xe: Ensure VMA not userptr before calling xe_bo_is_stolen
Problem Details: Fix the below splat: [ 142.510525] [IGT] xe_exec_basic: starting subtest once-userptr [ 142.511339] BUG: kernel NULL pointer dereference, address: 0000000000000228 [ 142.518311] #PF: supervisor read access in kernel mode [ 142.523458] #PF: error_code(0x0000) - not-present page [ 142.528604] PGD 0...
```diff diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c index 45850184650c..688bc4b56294 100644 --- a/drivers/gpu/drm/xe/xe_pt.c +++ b/drivers/gpu/drm/xe/xe_pt.c @@ -757,7 +757,7 @@ xe_pt_stage_bind(struct xe_gt *gt, struct xe_vma *vma, else xe_walk.cache = XE_CACHE_WB; } - if (xe_bo_is_st...
86011ae21c15a779dcf25b97d5670371dc14e4c3
Analyze and fix the following issue in the Linux kernel code: drm/xe: Stop using i915's range_overflows_t macro.
Problem Details: Let's do it directly. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com>
```diff diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c index 969a2427b1f2..9234da06d205 100644 --- a/drivers/gpu/drm/xe/xe_guc.c +++ b/drivers/gpu/drm/xe/xe_guc.c @@ -25,7 +25,7 @@ #include <linux/delay.h> /* * FIXME: This header has been deemed evil and we need to kill it. Temporarily - * i...
39042079a0c241d09fa6fc3bb67c2ddf60011d0f
Analyze and fix the following issue in the Linux kernel code: kmemleak: avoid RCU stalls when freeing metadata for per-CPU pointers
Problem Details: On systems with large number of CPUs, the following soft lockup splat might sometimes happen: [ 2656.001617] watchdog: BUG: soft lockup - CPU#364 stuck for 21s! [ksoftirqd/364:2206] : [ 2656.141194] RIP: 0010:_raw_spin_unlock_irqrestore+0x3d/0x70 : 2656.241214] Call Trace: [ 2656.243971] <IRQ> [...
```diff diff --git a/mm/kmemleak.c b/mm/kmemleak.c index 0fb4dcc3b06a..6a540c2b27c5 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -14,17 +14,15 @@ * The following locks and mutexes are used by kmemleak: * * - kmemleak_lock (raw_spinlock_t): protects the object_list as well as - * del_state modifications and...
f67f8d4a8c1e1ebc85a6cbdb9a7266f14863461c
Analyze and fix the following issue in the Linux kernel code: mm/rmap: fix misplaced parenthesis of a likely()
Problem Details: Running my yearly branch profiler to see where likely/unlikely annotation may be added or removed, I discovered this: correct incorrect % Function File Line ------- --------- - -------- ---- ---- 0 457918 100 page_tr...
```diff diff --git a/include/linux/rmap.h b/include/linux/rmap.h index b26fe858fd44..3c2fc291b071 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -261,8 +261,8 @@ static inline int page_try_dup_anon_rmap(struct page *page, bool compound, * guarantee the pinned page won't be randomly replaced in the ...
ec056cef76a525706601b32048f174f9bea72c7c
Analyze and fix the following issue in the Linux kernel code: mm/readahead: do not allow order-1 folio
Problem Details: The THP machinery does not support order-1 folios because it requires meta data spanning the first 3 `struct page`s. So order-2 is the smallest large folio that we can safely create. There was a theoretical bug whereby if ra->size was 2 or 3 pages (due to the device-specific bdi->ra_pages being set t...
```diff diff --git a/mm/readahead.c b/mm/readahead.c index 6925e6959fd3..23620c57c122 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -511,16 +511,14 @@ void page_cache_ra_order(struct readahead_control *ractl, unsigned int order = new_order; /* Align with smaller pages if needed */ - if (index & ((1UL << ...
4b86316ef18231109e4ebb3661ffc69d816fb56f
Analyze and fix the following issue in the Linux kernel code: selftests/mm: dont run ksm_functional_tests twice
Problem Details: ksm functional test is already being run. Remove the duplicate call to ./ksm_functional_tests. Link: https://lkml.kernel.org/r/20231129221140.614713-1-npache@redhat.com Fixes: 93fb70aa5904 ("selftests/vm: add KSM unmerge tests") Signed-off-by: Nico Pache <npache@redhat.com> Acked-by: Joel Savitz <jsa...
```diff diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh index 00757445278e..c0212258b852 100755 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -334,8 +334,6 @@ CATEGORY="ksm_numa" run_test ./ksm_tests -N -m 0 CATEG...
2e783f0c1a0d9017209f2ed243960924ebb602cb
Analyze and fix the following issue in the Linux kernel code: maple_tree: move the check forward to avoid static check warning
Problem Details: Patch series "Some cleanups of maple tree", v2. These are some small cleanups of maple tree. This patch (of 5): Put the check for gap before its reference to avoid Smatch static check warnings. This is not a bug, it's just a validation program. Even with this change, Smatch may still generate war...
```diff diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 3aa69c6920e1..df3ae393f12a 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -7257,6 +7257,7 @@ static void mas_validate_gaps(struct ma_state *mas) counted: if (mt == maple_arange_64) { + MT_BUG_ON(mas->tree, !gaps); offset = ma_meta_gap(node...
d1fefa3d22447923e75ab2cd7abe302e43b77d0c
Analyze and fix the following issue in the Linux kernel code: maple_tree: remove unused function
Problem Details: The function are defined in the maple_tree.c file, but not called elsewhere, so delete the unused function. lib/maple_tree.c:689:29: warning: unused function 'mas_pivot'. Link: https://lkml.kernel.org/r/20231027084944.24888-1-jiapeng.chong@linux.alibaba.com Signed-off-by: Jiapeng Chong <jiapeng.chong...
```diff diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 925c5742a57d..3aa69c6920e1 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -684,35 +684,6 @@ static inline unsigned long *ma_gaps(struct maple_node *node, return NULL; } -/* - * mas_pivot() - Get the pivot at @piv of the maple encoded node. - *...
bf857ddd21d0bffc1edafc317e8e2ce0d6d5950c
Analyze and fix the following issue in the Linux kernel code: maple_tree: move debug check to __mas_set_range()
Problem Details: __mas_set_range() was created to shortcut resetting the maple state and a debug check was added to the caller (the vma iterator) to ensure the internal maple state remains safe to use. Move the debug check from the vma iterator into the maple tree itself so other users do not incorrectly use the advan...
```diff diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h index a452dd8a1e5c..b5d5992578c9 100644 --- a/include/linux/maple_tree.h +++ b/include/linux/maple_tree.h @@ -557,6 +557,131 @@ static inline void mas_reset(struct ma_state *mas) */ #define mas_for_each(__mas, __entry, __max) \ while (((_...
56c26d5ad86dfe48a76855a91b523ab4f372c003
Analyze and fix the following issue in the Linux kernel code: bpf: Remove unused backtrack_state helper functions
Problem Details: The function are defined in the verifier.c file, but not called elsewhere, so delete the unused function. kernel/bpf/verifier.c:3448:20: warning: unused function 'bt_set_slot' kernel/bpf/verifier.c:3453:20: warning: unused function 'bt_clear_slot' kernel/bpf/verifier.c:3488:20: warning: unused functio...
```diff diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index d1755db1b503..ef27820a24e3 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -3465,16 +3465,6 @@ static inline void bt_clear_frame_slot(struct backtrack_state *bt, u32 frame, u3 bt->stack_masks[frame] &= ~(1ull << slot); } -st...
f77d795618b92ac6fdb43de0d4036c6ce49f0b82
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Fixes tests for filesystem kfuncs
Problem Details: `fs_kfuncs.c`'s `test_xattr` would fail the test even when the filesystem did not support xattr, for instance when /tmp is mounted as tmpfs. This change checks errno when setxattr fail. If the failure is due to the operation being unsupported, we will skip the test (just like we would if verity was no...
```diff diff --git a/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c b/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c index d3196a4b089f..37056ba73847 100644 --- a/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c +++ b/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c @@ -25,6 +25,14 @@ static void test_xattr...
7133b072dfbfac8763ffb017642c9c894894c50d
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: fix the issue that the multicast/broadcast indicator is not read correctly for WCN7850
Problem Details: We observe some packets are discarded in ieee80211_rx_handlers_result function for WCN7850. This is because the way to get multicast/broadcast indicator with RX_MSDU_END_INFO5_DA_IS_MCBC & info5 is incorrect. It should use RX_MSDU_END_INFO13_MCAST_BCAST & info13 to get multicast/broadcast indicator. T...
```diff diff --git a/drivers/net/wireless/ath/ath12k/hal.c b/drivers/net/wireless/ath/ath12k/hal.c index ca6f1d0db31e..a489369d8068 100644 --- a/drivers/net/wireless/ath/ath12k/hal.c +++ b/drivers/net/wireless/ath/ath12k/hal.c @@ -889,8 +889,8 @@ static u8 *ath12k_hw_wcn7850_rx_desc_mpdu_start_addr2(struct hal_rx_desc ...
add731385eed7b2c8298e3f97250e6057d7ca9cf
Analyze and fix the following issue in the Linux kernel code: wifi: ath11k: Fix ath11k_htc_record flexible record
Problem Details: Transform the zero-length ath11k_htc_record::credit_report array into a proper flexible array. Since this is the only array in ath11k_htc_record, remove the unnecessary union. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: ...
```diff diff --git a/drivers/net/wireless/ath/ath11k/htc.h b/drivers/net/wireless/ath/ath11k/htc.h index d5864a35e75b..86f77eacaea7 100644 --- a/drivers/net/wireless/ath/ath11k/htc.h +++ b/drivers/net/wireless/ath/ath11k/htc.h @@ -151,9 +151,7 @@ struct ath11k_htc_credit_report { struct ath11k_htc_record { struct ...
e7ab758741672acb21c5d841a9f0309d30e48a06
Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Disable PSR-SU on Parade 0803 TCON again
Problem Details: When screen brightness is rapidly changed and PSR-SU is enabled the display hangs on panels with this TCON even on the latest DCN 3.1.4 microcode (0x8002a81 at this time). This was disabled previously as commit 072030b17830 ("drm/amd: Disable PSR-SU on Parade 0803 TCON") but reverted as commit 1e66a17...
```diff diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c index a522a7c02911..1675314a3ff2 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c @@ -839,6 +83...
a409c053b0b0cc0fc1af684d0b23bd5ca010c4cb
Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Revert "Fix conversions between bytes and KB"
Problem Details: [Why & How] HostVMMinPageSize is expected to be in KB according to spec, the checks later down the line reflect this as well. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Taimur Hassan <syed.hassan@amd.com> Signed-o...
```diff diff --git a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c index 4d1336e5afc2..180f8a98a361 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c @@ -6329,7 +6329,7 @@...
70060463cb2ba72bbb77c7ced503f53e09380f17
Analyze and fix the following issue in the Linux kernel code: x86/mce: Differentiate real hardware #MCs from TDX erratum ones
Problem Details: The first few generations of TDX hardware have an erratum. Triggering it in Linux requires some kind of kernel bug involving relatively exotic memory writes to TDX private memory and will manifest via spurious-looking machine checks when reading the affected memory. Make an effort to detect these TDX...
```diff diff --git a/arch/x86/include/asm/tdx.h b/arch/x86/include/asm/tdx.h index c54948e1999c..eba178996d84 100644 --- a/arch/x86/include/asm/tdx.h +++ b/arch/x86/include/asm/tdx.h @@ -32,6 +32,8 @@ #ifndef __ASSEMBLY__ +#include <uapi/asm/mce.h> + /* * Used by the #VE exception handler to gather the #VE exce...
1e536e10689700e006989dea33918cce348e04b6
Analyze and fix the following issue in the Linux kernel code: x86/cpu: Detect TDX partial write machine check erratum
Problem Details: TDX memory has integrity and confidentiality protections. Violations of this integrity protection are supposed to only affect TDX operations and are never supposed to affect the host kernel itself. In other words, the host kernel should never, itself, see machine checks induced by the TDX integrity h...
```diff diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 45ddc6b6baaa..dbec4a0cf36a 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -496,6 +496,7 @@ #define X86_BUG_EIBRS_PBRSB X86_BUG(28) /* EIBRS is vulnerable to Post Barrier RSB ...
3c0696076aad60a2f04c019761921954579e1b0e
Analyze and fix the following issue in the Linux kernel code: arm64: mm: Always make sw-dirty PTEs hw-dirty in pte_modify
Problem Details: It is currently possible for a userspace application to enter an infinite page fault loop when using HugeTLB pages implemented with contiguous PTEs when HAFDBS is not available. This happens because: 1. The kernel may sometimes write PTEs that are sw-dirty but hw-clean (PTE_DIRTY | PTE_RDONLY | PTE...
```diff diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index b19a8aee684c..79ce70fbb751 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -834,6 +834,12 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) pte = set_pte_bit(pte, __pgpr...
afd549903ea98bd21b9db2a409b227e893b7a70f
Analyze and fix the following issue in the Linux kernel code: wifi: iwlegacy: Add null pointer check to il_leds_init()
Problem Details: kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Cc: Kunwu Chan <kunwu.chan@hotmail.com> Signed-off-by: Kunwu Chan <chentao@kylinos.cn> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/2...
```diff diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c index 054fef680aba..17570d62c896 100644 --- a/drivers/net/wireless/intel/iwlegacy/common.c +++ b/drivers/net/wireless/intel/iwlegacy/common.c @@ -541,6 +541,9 @@ il_leds_init(struct il_priv *il) il->led....
fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d
Analyze and fix the following issue in the Linux kernel code: wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap()
Problem Details: Since 'ieee80211_beacon_get()' can return NULL, 'wfx_set_mfp_ap()' should check the return value before examining skb data. So convert the latter to return an appropriate error code and propagate it to return from 'wfx_start_ap()' as well. Compile tested only. Signed-off-by: Dmitry Antipov <dmantipov@...
```diff diff --git a/drivers/net/wireless/silabs/wfx/sta.c b/drivers/net/wireless/silabs/wfx/sta.c index 1b6c158457b4..537caf9d914a 100644 --- a/drivers/net/wireless/silabs/wfx/sta.c +++ b/drivers/net/wireless/silabs/wfx/sta.c @@ -336,29 +336,38 @@ static int wfx_upload_ap_templates(struct wfx_vif *wvif) return 0; }...
6c02757c936063f0631b4e43fe156f8c8f1f351f
Analyze and fix the following issue in the Linux kernel code: jbd2: fix soft lockup in journal_finish_inode_data_buffers()
Problem Details: There's issue when do io test: WARN: soft lockup - CPU#45 stuck for 11s! [jbd2/dm-2-8:4170] CPU: 45 PID: 4170 Comm: jbd2/dm-2-8 Kdump: loaded Tainted: G OE Call trace: dump_backtrace+0x0/0x1a0 show_stack+0x24/0x30 dump_stack+0xb0/0x100 watchdog_timer_fn+0x254/0x3f8 __hrtimer_run_queues+0x11c/0x38...
```diff diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 9bdb377a348f..5e122586e06e 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -270,6 +270,7 @@ static int journal_finish_inode_data_buffers(journal_t *journal, if (!ret) ret = err; } + cond_resched(); spin_lock(&journal->j_list_lock); ...
cb383f06686734ef04daf63a4369566800717b7b
Analyze and fix the following issue in the Linux kernel code: fsnotify: assert that file_start_write() is not held in permission hooks
Problem Details: filesystem may be modified in the context of fanotify permission events (e.g. by HSM service), so assert that sb freeze protection is not held. If the assertion fails, then the following deadlock would be possible: CPU0 CPU1 CPU2 ------------------------------------------------------------------...
```diff diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index 926bb4461b9e..0a9d6a8a747a 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -107,6 +107,13 @@ static inline int fsnotify_file_perm(struct file *file, int perm_mask) { __u32 fsnotify_mask = FS_ACCESS_PERM; + /* + ...
595b1280e2c95ea53fbb228bb90d834caa0f86f1
Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: avoid stringop-overflow warning
Problem Details: After -Wstringop-overflow got enabled, the rtw89 driver produced two odd warnings with gcc-13: drivers/net/wireless/realtek/rtw89/coex.c: In function 'rtw89_btc_ntfy_scan_start': drivers/net/wireless/realtek/rtw89/coex.c:5362:50: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow...
```diff diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c index b842cd9a86f8..9c0db35d3e13 100644 --- a/drivers/net/wireless/realtek/rtw89/coex.c +++ b/drivers/net/wireless/realtek/rtw89/coex.c @@ -5352,6 +5352,10 @@ void rtw89_btc_ntfy_scan_start(struct rtw89_dev *rtwde...
9b19700e623f96222c69ecb2adecb1a3e3664cc0
Analyze and fix the following issue in the Linux kernel code: arm64: fpsimd: Drop unneeded 'busy' flag
Problem Details: Kernel mode NEON will preserve the user mode FPSIMD state by saving it into the task struct before clobbering the registers. In order to avoid the need for preserving kernel mode state too, we disallow nested use of kernel mode NEON, i..e, use in softirq context while the interrupted task context was u...
```diff diff --git a/arch/arm64/include/asm/simd.h b/arch/arm64/include/asm/simd.h index 6a75d7ecdcaa..8e86c9e70e48 100644 --- a/arch/arm64/include/asm/simd.h +++ b/arch/arm64/include/asm/simd.h @@ -12,8 +12,6 @@ #include <linux/preempt.h> #include <linux/types.h> -DECLARE_PER_CPU(bool, fpsimd_context_busy); - #if...
cd607f2cbbbec90682b2f6d6b85e1525d0f43b19
Analyze and fix the following issue in the Linux kernel code: wifi: mt76: fix crash with WED rx support enabled
Problem Details: If WED rx is enabled, rx buffers are added to a buffer pool that can be filled from multiple page pools. Because buffers freed from rx poll are not guaranteed to belong to the processed queue's page pool, lockless caching must not be used in this case. Cc: stable@vger.kernel.org Fixes: 2f5c3c77fc9b ("...
```diff diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 511fe7e6e744..68ad915203aa 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -783,7 +783,7 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid)...
df83a0df820b9b705e51b9499691b0dafb2f4dcb
Analyze and fix the following issue in the Linux kernel code: HID: apple: Add "hfd.cn" and "WKB603" to the list of non-apple keyboards
Problem Details: JingZao(京造) WKB603 keyboard is a rebranded product of Jamesdonkey RS2 keyboard, identified as "hfd.cn WKB603" in wired mode, "WKB603" in bluetooth mode. Adding them to the list of non-apple keyboards fixes function key. Signed-off-by: Yan Jun <jerrysteve1101@gmail.com> Signed-off-by: Jiri Kosina <jkos...
```diff diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index d9e9829b2200..b9c7c0ed7bcc 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -347,6 +347,8 @@ static const struct apple_non_apple_keyboard non_apple_keyboards[] = { { "Hailuck" }, { "Jamesdonkey" }, { "A3R" }, + { "hf...
43527a0094c10dfbf0d5a2e7979395a38de3ff65
Analyze and fix the following issue in the Linux kernel code: HID: lenovo: Restrict detection of patched firmware only to USB cptkbd
Problem Details: Commit 46a0a2c96f0f ("HID: lenovo: Detect quirk-free fw on cptkbd and stop applying workaround") introduced a regression for ThinkPad TrackPoint Keyboard II which has similar quirks to cptkbd (so it uses the same workarounds) but slightly different so that there are false-positives during detecting wel...
```diff diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c index 7c1b33be9d13..149a3c74346b 100644 --- a/drivers/hid/hid-lenovo.c +++ b/drivers/hid/hid-lenovo.c @@ -692,7 +692,8 @@ static int lenovo_event_cptkbd(struct hid_device *hdev, * so set middlebutton_state to 3 * to never apply workaround ...
e5c7bcb499840551cfbe85c6df177ebc50432bf0
Analyze and fix the following issue in the Linux kernel code: spi: sh-msiof: Enforce fixed DTDL for R-Car H3
Problem Details: Documentation says only DTDL of 200 is allowed for this SoC. Fixes: 4286db8456f4 ("spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings") Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro...
```diff diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index fb452bc78372..cfc3b1ddbd22 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -29,12 +29,15 @@ #include <asm/unaligned.h> +#define SH_MSIOF_FLAG_FIXED_DTDL_200 BIT(0) + struct sh_msiof_chipdata { u32 bits...
5ed06e489d20dca141047bdb025d885306ea66da
Analyze and fix the following issue in the Linux kernel code: ASoC: cs42l43: Add missing statics for hp_ilimit functions
Problem Details: Fixes: bbbc18d8c27c ("ASoC: cs42l43: Allow HP amp to cool off after current limit") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://msgid.link/r/20231212104149.2388753-1-ckeepax@opensource.cirrus.com Signed-off-by: Mark Br...
```diff diff --git a/sound/soc/codecs/cs42l43.c b/sound/soc/codecs/cs42l43.c index d2412dab3599..6a64681767de 100644 --- a/sound/soc/codecs/cs42l43.c +++ b/sound/soc/codecs/cs42l43.c @@ -139,7 +139,7 @@ CS42L43_IRQ_ERROR(spkl_therm_warm) CS42L43_IRQ_ERROR(spkr_sc_detect) CS42L43_IRQ_ERROR(spkl_sc_detect) -void cs42...
2b46a19db0a1769a25adc65d1784b68bd8b60046
Analyze and fix the following issue in the Linux kernel code: fs: super: use GFP_KERNEL instead of GFP_USER for super block allocation
Problem Details: There is no reason to use a GFP_USER flag for struct super_block allocation in the alloc_super(). Instead, let's use GFP_KERNEL for that. >From the memory management perspective, the only difference between GFP_USER and GFP_KERNEL is that GFP_USER allocations are tied to a cpuset, while GFP_KERNEL one...
```diff diff --git a/fs/super.c b/fs/super.c index 076392396e72..6fe482371633 100644 --- a/fs/super.c +++ b/fs/super.c @@ -323,7 +323,7 @@ static void destroy_unused_super(struct super_block *s) static struct super_block *alloc_super(struct file_system_type *type, int flags, struct user_namespace *user_ns)...
02105f18a26c985a47b40b7401541535ab78a1dd
Analyze and fix the following issue in the Linux kernel code: fs/hfsplus: wrapper.c: fix kernel-doc warnings
Problem Details: Fix kernel-doc warnings found when using "W=1". wrapper.c:48: warning: No description found for return value of 'hfsplus_submit_bio' wrapper.c:49: warning: Function parameter or member 'opf' not described in 'hfsplus_submit_bio' wrapper.c:49: warning: Excess function parameter 'op' description in 'hfs...
```diff diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c index 0b791adf02e5..b0cb70400996 100644 --- a/fs/hfsplus/wrapper.c +++ b/fs/hfsplus/wrapper.c @@ -30,8 +30,7 @@ struct hfsplus_wd { * @sector: block to read or write, for blocks of HFSPLUS_SECTOR_SIZE bytes * @buf: buffer for I/O * @data: output poi...
e95aada4cb93d42e25c30a0ef9eb2923d9711d4a
Analyze and fix the following issue in the Linux kernel code: pipe: wakeup wr_wait after setting max_usage
Problem Details: Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1]. The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait...
```diff diff --git a/fs/pipe.c b/fs/pipe.c index 226e7f66b590..8d9286a1f2e8 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1324,6 +1324,11 @@ int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots) pipe->tail = tail; pipe->head = head; + if (!pipe_has_watch_queue(pipe)) { + pipe->max_usage = nr_slo...
4e94ddfe2aab72139acb8d5372fac9e6c3f3e383
Analyze and fix the following issue in the Linux kernel code: file: remove __receive_fd()
Problem Details: Honestly, there's little value in having a helper with and without that int __user *ufd argument. It's just messy and doesn't really give us anything. Just expose receive_fd() with that argument and get rid of that helper. Link: https://lore.kernel.org/r/20231130-vfs-files-fixes-v1-5-e73ca6f4ea83@kern...
```diff diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c index 0ddd4b8abecb..fafd4610b185 100644 --- a/drivers/vdpa/vdpa_user/vduse_dev.c +++ b/drivers/vdpa/vdpa_user/vduse_dev.c @@ -1157,7 +1157,7 @@ static long vduse_dev_ioctl(struct file *file, unsigned int cmd, fput(f); b...
eac9189c96196574a83a553ca5a7543dd9f5fe3e
Analyze and fix the following issue in the Linux kernel code: file: stop exposing receive_fd_user()
Problem Details: Not every subsystem needs to have their own specialized helper. Just us the __receive_fd() helper. Link: https://lore.kernel.org/r/20231130-vfs-files-fixes-v1-4-e73ca6f4ea83@kernel.org Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christian Brauner <brau...
```diff diff --git a/include/linux/file.h b/include/linux/file.h index 6e9099d29343..c0d5219c2852 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -101,13 +101,6 @@ extern int __receive_fd(struct file *file, int __user *ufd, extern int receive_fd(struct file *file, unsigned int o_flags); -static inl...
372a34e66fb7f95124fadae9c600b231c35696a7
Analyze and fix the following issue in the Linux kernel code: fs: replace f_rcuhead with f_task_work
Problem Details: The naming is actively misleading since we switched to SLAB_TYPESAFE_BY_RCU. rcu_head is #define callback_head. Use callback_head directly and rename f_rcuhead to f_task_work. Add comments in there to explain what it's used for. Link: https://lore.kernel.org/r/20231130-vfs-files-fixes-v1-3-e73ca6f4ea...
```diff diff --git a/fs/file_table.c b/fs/file_table.c index 6deac386486d..3ba764d73fc9 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -407,7 +407,7 @@ static void delayed_fput(struct work_struct *unused) static void ____fput(struct callback_head *work) { - __fput(container_of(work, struct file, f_rcuhead));...
24fa3ae9467f49dd9698fd884f2c6b13cc8ea12d
Analyze and fix the following issue in the Linux kernel code: file: remove pointless wrapper
Problem Details: Only io_uring uses __close_fd_get_file(). All it does is hide current->files but io_uring accesses files_struct directly right now anyway so it's a bit pointless. Just rename pick_file() to file_close_fd_locked() and let io_uring use it. Add a lockdep assert in there that we expect the caller to hold f...
```diff diff --git a/fs/file.c b/fs/file.c index 66f04442a384..c8eaa0b29a08 100644 --- a/fs/file.c +++ b/fs/file.c @@ -629,19 +629,23 @@ void fd_install(unsigned int fd, struct file *file) EXPORT_SYMBOL(fd_install); /** - * pick_file - return file associatd with fd + * file_close_fd_locked - return file associated ...
a88c955fcfb49727d0ed86b47410f6555a8e69e4
Analyze and fix the following issue in the Linux kernel code: file: s/close_fd_get_file()/file_close_fd()/g
Problem Details: That really shouldn't have "get" in there as that implies we're bumping the reference count which we don't do at all. We used to but not anmore. Now we're just closing the fd and pick that file from the fdtable without bumping the reference count. Update the wrong documentation while at it. Link: http...
```diff diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 92128aae2d06..7658103ba760 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -1921,7 +1921,7 @@ static void binder_deferred_fd_close(int fd) if (!twcb) return; init_task_work(&twcb->twork, binder_do_fd_close); - ...
810c38a369a0a0ce625b5c12169abce1dd9ccd53
Analyze and fix the following issue in the Linux kernel code: net/rose: Fix Use-After-Free in rose_ioctl
Problem Details: Because rose_ioctl() accesses sk->sk_receive_queue without holding a sk->sk_receive_queue.lock, it can cause a race with rose_accept(). A use-after-free for skb occurs with the following flow. ``` rose_ioctl() -> skb_peek() rose_accept() -> skb_dequeue() -> kfree_skb() ``` Add sk->sk_receive_queue.lock...
```diff diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 0cc5a4e19900..ecb91ad4ce63 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1315,9 +1315,11 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) case TIOCINQ: { struct sk_buff *skb; long amount = 0L; - ...
24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3
Analyze and fix the following issue in the Linux kernel code: atm: Fix Use-After-Free in do_vcc_ioctl
Problem Details: Because do_vcc_ioctl() accesses sk->sk_receive_queue without holding a sk->sk_receive_queue.lock, it can cause a race with vcc_recvmsg(). A use-after-free for skb occurs with the following flow. ``` do_vcc_ioctl() -> skb_peek() vcc_recvmsg() -> skb_recv_datagram() -> skb_free_datagram() ``` Add sk->sk_...
```diff diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c index 838ebf0cabbf..f81f8d56f5c0 100644 --- a/net/atm/ioctl.c +++ b/net/atm/ioctl.c @@ -73,14 +73,17 @@ static int do_vcc_ioctl(struct socket *sock, unsigned int cmd, case SIOCINQ: { struct sk_buff *skb; + int amount; if (sock->state != SS_CONNECTED) {...
1892fe103c3a20fced306c8dafa74f7f6d4ea0a3
Analyze and fix the following issue in the Linux kernel code: perf/arm-cmn: Fail DTC counter allocation correctly
Problem Details: Calling arm_cmn_event_clear() before all DTC indices are allocated is wrong, and can lead to arm_cmn_event_add() erroneously clearing live counters from full DTCs where allocation fails. Since the DTC counters are only updated by arm_cmn_init_counter() after all DTC and DTM allocations succeed, nothing...
```diff diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 014010d03588..847b0dc41293 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -1816,7 +1816,7 @@ static int arm_cmn_event_add(struct perf_event *event, int flags) idx = 0; while (cmn->dtc[j].counters[idx]) if (++idx...
806f49a6eadc008cb86a110727e394389ccde379
Analyze and fix the following issue in the Linux kernel code: arm64: defconfig: Enable DA9211 regulator
Problem Details: Mediatek mt8173 board fails to boot with DA9211 regulator disabled. Enabling CONFIG_REGULATOR_DA9211=y in drm-ci fixes the issue. So enable it in the defconfig since kernel-ci also requires it. Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: AngeloGioac...
```diff diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index b60aa1f89343..fcdaf925c4c1 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -737,6 +737,7 @@ CONFIG_REGULATOR_AXP20X=y CONFIG_REGULATOR_BD718XX=y CONFIG_REGULATOR_BD9571MWV=y CONFIG_REGULATOR_CROS_EC...
232afb557835d6f6859c73bf610bad308c96b131
Analyze and fix the following issue in the Linux kernel code: x86/CPU/AMD: Add X86_FEATURE_ZEN1
Problem Details: Add a synthetic feature flag specifically for first generation Zen machines. There's need to have a generic flag for all Zen generations so make X86_FEATURE_ZEN be that flag. Fixes: 30fa92832f40 ("x86/CPU/AMD: Add ZenX generations flags") Suggested-by: Brian Gerst <brgerst@gmail.com> Suggested-by: Tom...
```diff diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 149cc5d5c2ae..632c26cdeeda 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -218,7 +218,7 @@ #define X86_FEATURE_IBRS ( 7*32+25) /* Indirect Branch Restricted Speculation */ #...
14c1b6f430e3582b3ef2ce1e3016de829b520f77
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: remove async command callback
Problem Details: There's only one user of this code, which is STA unblock during sleep for uAPSD on really old devices. Instead of having this all through the API with calls up and down, just implemented a special-case CMD_BLOCK_TXQS flag for this, it's only needed in the old gen1 transport. While at it, fix a complai...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h index af5f9b210f22..3dc618a7c70f 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h @@ -64,8 +64,6 @@ struct iwl_cfg; * received on...
637bbd5b3cbd0fc6945ebd2e311315b6cca1f9c5
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: don't support triggered EHT CQI feedback
Problem Details: EHT CQI is one of the EHT PHY capabilities. We don't support EHT CQI. The non-triggered CQI feedback bit was unset in a previous patch, but the triggered CQI feedback bit wasn't. Unset it. Fixes: 0e21ec6edbb5 ("wifi: iwlwifi: nvm: Update EHT capabilities for GL device") Signed-off-by: Miri Korenblit <...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c index 6015e1255d2a..480f8edbfd35 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c @@ -1029,7 +1029,8 @@ iwl_nvm_fixup_sband...
48490dc36742b616f846368f300ebedfe9323da1
Analyze and fix the following issue in the Linux kernel code: soc: fsl: cpm1: qmc: Remove inline function specifiers
Problem Details: The inline function specifier is present on some functions but it is better to let the compiler decide inlining or not these functions. Remove inline specifiers. Fixes: 3178d58e0b97 ("soc: fsl: cpm1: Add support for QMC") Signed-off-by: Herve Codina <herve.codina@bootlin.com> Suggested-by: Andrew Lun...
```diff diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index 4b4832d93c9b..27f2f16deac9 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -218,37 +218,37 @@ struct qmc { struct qmc_chan *chans[64]; }; -static inline void qmc_write16(void __iomem *addr, u16 val) +static void ...
dfe66d012af2ddfa566cf9c860b8472b412fb7e4
Analyze and fix the following issue in the Linux kernel code: soc: fsl: cpm1: qmc: Fix rx channel reset
Problem Details: The qmc_chan_reset_rx() set the is_rx_stopped flag. This leads to an inconsistent state in the following sequence. qmc_chan_stop() qmc_chan_reset() Indeed, after the qmc_chan_reset() call, the channel must still be stopped. Only a qmc_chan_start() call can move the channel from stopped state to...
```diff diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index 3f3de1351c96..2312152a44b3 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -685,7 +685,6 @@ static void qmc_chan_reset_rx(struct qmc_chan *chan) qmc_read16(chan->s_param + QMC_SPE_RBASE)); chan->rx_pending ...
a5ec3a21220da06bdda2e686012ca64fdb6c513d
Analyze and fix the following issue in the Linux kernel code: soc: fsl: cpm1: qmc: Fix __iomem addresses declaration
Problem Details: Running sparse (make C=1) on qmc.c raises a lot of warning such as: ... warning: incorrect type in assignment (different address spaces) expected struct cpm_buf_desc [usertype] *[noderef] __iomem bd got struct cpm_buf_desc [noderef] [usertype] __iomem *txbd_free ... Indeed, some variab...
```diff diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index 92ec76c03965..3f3de1351c96 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -175,7 +175,7 @@ struct qmc_chan { struct list_head list; unsigned int id; struct qmc *qmc; - void *__iomem s_param; + void __iomem *s_p...
fc0c64154e5ddeb6f63c954735bd646ce5b8d9a4
Analyze and fix the following issue in the Linux kernel code: soc: fsl: cpm1: tsa: Fix __iomem addresses declaration
Problem Details: Running sparse (make C=1) on tsa.c raises a lot of warning such as: --- 8< --- warning: incorrect type in assignment (different address spaces) expected void *[noderef] si_regs got void [noderef] __iomem * --- 8< --- Indeed, some variable were declared 'type *__iomem var' instead of 't...
```diff diff --git a/drivers/soc/fsl/qe/tsa.c b/drivers/soc/fsl/qe/tsa.c index 3f9981335590..6c5741cf5e9d 100644 --- a/drivers/soc/fsl/qe/tsa.c +++ b/drivers/soc/fsl/qe/tsa.c @@ -98,9 +98,9 @@ #define TSA_SIRP 0x10 struct tsa_entries_area { - void *__iomem entries_start; - void *__iomem entries_next; - void *__iome...
7be423336eccc872249d37900c19c1d24f171353
Analyze and fix the following issue in the Linux kernel code: iommu: Set owner token to SVA domain
Problem Details: Commit a9c362db3920 ("iommu: Validate that devices match domains") added an owner token to the iommu_domain. This token is checked during domain attachment to RID or PASID through the generic iommu interfaces. The SVA domains are attached to PASIDs through those iommu interfaces. Therefore, they requi...
```diff diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 0d25468d53a6..d0a28667479a 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -3617,6 +3617,7 @@ struct iommu_domain *iommu_sva_domain_alloc(struct device *dev, domain->type = IOMMU_DOMAIN_SVA; mmgrab(mm); domain->mm = mm; + d...
ce038edfce43fb345f8dfdca0f7b17f535896701
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: pcie: avoid a NULL pointer dereference
Problem Details: It possible that while the rx rb is being handled, the transport has been stopped and re-started. In this case the tx queue pointer is not yet initialized, which will lead to a NULL pointer dereference. Fix it. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Miri Korenblit <miria...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 146bc7bd14fb..bc6a9f861711 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -1385,7 +1385,7 @@ static void iwl_pcie_rx_handle_rb(struct iw...
8c386b166e2517cf3a123018e77941ec22625d0f
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: mesh_plink: fix matches_local logic
Problem Details: During refactoring the "else" here got lost, add it back. Fixes: c99a89edb106 ("mac80211: factor out plink event gathering") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20231211085121.795480fa0e0b.I01...
```diff diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 2da6ecf0077d..28bf794f67f8 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -1068,8 +1068,8 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata, case WLAN_SP_MESH_PEERING_OPEN: if (!matches_local) ...
1fc4a3eec50d726f4663ad3c0bb0158354d6647a
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: mesh: check element parsing succeeded
Problem Details: ieee802_11_parse_elems() can return NULL, so we must check for the return value. Fixes: 5d24828d05f3 ("mac80211: always allocate struct ieee802_11_elems") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/2...
```diff diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index dbabeefe4515..2da6ecf0077d 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -1247,6 +1247,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, return; } elems = ieee802_11_parse_elems(baseaddr...
98849ba2aa9db46e62720fb686a9d63ed9887806
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: check defragmentation succeeded
Problem Details: We need to check that cfg80211_defragment_element() didn't return an error, since it can fail due to bad input, and we didn't catch that before. Fixes: 8eb8dd2ffbbb ("wifi: mac80211: Support link removal using Reconfiguration ML element") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-o...
```diff diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 887b496f2b81..c8998cf01b7a 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -5782,7 +5782,7 @@ static void ieee80211_ml_reconfiguration(struct ieee80211_sub_if_data *sdata, { const struct ieee80211_multi_link_elem *ml; const struct e...
63bafd9d5421959b2124dd940ed8d7462d99f449
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: don't re-add debugfs during reconfig
Problem Details: If we're doing reconfig, then we cannot add the debugfs files that are already there from before the reconfig. Skip that in drv_change_sta_links() during reconfig. Fixes: d2caad527c19 ("wifi: mac80211: add API to show the link STAs in debugfs") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Re...
```diff diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c index 7938ec87ef25..d3820333cd59 100644 --- a/net/mac80211/driver-ops.c +++ b/net/mac80211/driver-ops.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2015 Intel Deutschland GmbH - * Copyright (C) 2022 Intel Corporat...
23484d817082c3005252d8edfc8292c8a1006b5b
Analyze and fix the following issue in the Linux kernel code: net: rfkill: gpio: set GPIO direction
Problem Details: Fix the undefined usage of the GPIO consumer API after retrieving the GPIO description with GPIO_ASIS. The API documentation mentions that GPIO_ASIS won't set a GPIO direction and requires the user to set a direction before using the GPIO. This can be confirmed on i.MX6 hardware, where rfkill-gpio is ...
```diff diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index 5a81505fba9a..4e32d659524e 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -126,6 +126,14 @@ static int rfkill_gpio_probe(struct platform_device *pdev) return -EINVAL; } + ret = gpiod_direction_output(rfkill->r...
c1393c132b906fbdf91f6d1c9eb2ef7a00cce64e
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: check if the existing link config remains unchanged
Problem Details: [Syz report] WARNING: CPU: 1 PID: 5067 at net/mac80211/rate.c:48 rate_control_rate_init+0x540/0x690 net/mac80211/rate.c:48 Modules linked in: CPU: 1 PID: 5067 Comm: syz-executor413 Not tainted 6.7.0-rc3-syzkaller-00014-gdf60cee26a2e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, ...
```diff diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 606b1b2e4123..eb1d3ef84353 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1788,10 +1788,10 @@ static int sta_link_apply_parameters(struct ieee80211_local *local, lockdep_is_held(&local->hw.wiphy->mtx)); /* - * If there are no ...
a4754182dc936b97ec7e9f6b08cdf7ed97ef9069
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: pcie: add another missing bh-disable for rxq->lock
Problem Details: Evidently I had only looked at all the ones in rx.c, and missed this. Add bh-disable to this use of the rxq->lock as well. Fixes: 25edc8f259c7 ("iwlwifi: pcie: properly implement NAPI") Reported-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-o...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index a468e5efeecd..92253260f568 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -3106,7 +3106,7 @@ static u32 iwl_trans_pcie_dump_...
4f973e211b3b1c6d36f7c6a19239d258856749f9
Analyze and fix the following issue in the Linux kernel code: IB/ipoib: Fix mcast list locking
Problem Details: Releasing the `priv->lock` while iterating the `priv->multicast_list` in `ipoib_mcast_join_task()` opens a window for `ipoib_mcast_dev_flush()` to remove the items while in the middle of iteration. If the mcast is removed while the lock was dropped, the for loop spins forever resulting in a hard lockup...
```diff diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 9e6967a40042..319d4288eddd 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -531,21 +531,17 @@ static int ipoib_mcast_join(struct ...
98fb9b9680c9f3895ced02d6a73e27f5d7b5892b
Analyze and fix the following issue in the Linux kernel code: wifi: ieee80211: don't require protected vendor action frames
Problem Details: For vendor action frames, whether a protected one should be used or not is clearly up to the individual vendor and frame, so even though a protected dual is defined, it may not get used. Thus, don't require protection for vendor action frames when they're used in a connection. Since we obviously don't...
```diff diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index c2ac9e9e7ee9..2b5e500bf093 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -4447,7 +4447,8 @@ ieee80211_is_protected_dual_of_public_action(struct sk_buff *skb) action != WLAN_PUB_ACTION_LOC_TRACK_NOTI && act...
4fe7a1ecaa4104c58c58a12ec29f24894381bdcc
Analyze and fix the following issue in the Linux kernel code: drm/exynos: Convert to platform remove callback returning void
Problem Details: The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here ...
```diff diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c index 4d986077738b..776f2f0b602d 100644 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -862,18 +862,16 @@ err_disable_pm_runtime: return ret; ...
16ac5b21b31b439f03cdf44c153c5f5af94fb3eb
Analyze and fix the following issue in the Linux kernel code: drm/exynos: Call drm_atomic_helper_shutdown() at shutdown/unbind time
Problem Details: Based on grepping through the source code this driver appears to be missing a call to drm_atomic_helper_shutdown() at system shutdown time and at driver unbind time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we ...
```diff diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 8399256cb5c9..5380fb6c55ae 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -300,6 +300,7 @@ err_mode_config_cleanup: drm_mode_config_cleanup(drm); exynos...
bedd6fe4d357f3cffb392f2153b52ef71f810259
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix nocow locks deadlock
Problem Details: On trylock failure we were waiting for outstanding reads to complete - but nocow locks need to be held until the whole move is finished. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/data_update.c b/fs/bcachefs/data_update.c index 2418c528c533..b05457d284a6 100644 --- a/fs/bcachefs/data_update.c +++ b/fs/bcachefs/data_update.c @@ -560,7 +560,8 @@ int bch2_data_update_init(struct btree_trans *trans, move_ctxt_wait_event(ctxt, (locked = bch2_bucket_nocow_t...
52bf9f6c09fca8c74388cd41cc24e5d1bff812a9
Analyze and fix the following issue in the Linux kernel code: afs: Fix refcount underflow from error handling race
Problem Details: If an AFS cell that has an unreachable (eg. ENETUNREACH) server listed (VL server or fileserver), an asynchronous probe to one of its addresses may fail immediately because sendmsg() returns an error. When this happens, a refcount underflow can happen if certain events hit a very small window. The wa...
```diff diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index ed1644e7683f..d642d06a453b 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -424,7 +424,7 @@ error_kill_call: if (call->async) { if (cancel_work_sync(&call->async_work)) afs_put_call(call); - afs_put_call(call); + afs_set_call_complete(call, ret, ...
bb34cc6ca87ff78f9fb5913d7619dc1389554da6
Analyze and fix the following issue in the Linux kernel code: f2fs: fix to update iostat correctly in f2fs_filemap_fault()
Problem Details: In f2fs_filemap_fault(), it fixes to update iostat info only if VM_FAULT_LOCKED is tagged in return value of filemap_fault(). Fixes: 8b83ac81f428 ("f2fs: support read iostat") Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
```diff diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 5c2f99ada6be..79d5b64c109c 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -42,7 +42,7 @@ static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf) vm_fault_t ret; ret = filemap_fault(vmf); - if (!ret) + if (ret & VM_FAULT_LOCKED) f2fs_update_iost...
fb9b65340c818875ea86464faf3c744bdce0055c
Analyze and fix the following issue in the Linux kernel code: f2fs: fix to check compress file in f2fs_move_file_range()
Problem Details: f2fs_move_file_range() doesn't support migrating compressed cluster data, let's add the missing check condition and return -EOPNOTSUPP for the case until we support it. Fixes: 4c8ff7095bef ("f2fs: support data compression") Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@k...
```diff diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 156b0ff05a3b..5c2f99ada6be 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2813,6 +2813,11 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in, goto out; } + if (f2fs_compressed_file(src) || f2fs_compressed_file(dst)) { + ret = ...
55fdc1c24a1d6229fe0ecf31335fb9a2eceaaa00
Analyze and fix the following issue in the Linux kernel code: f2fs: fix to wait on block writeback for post_read case
Problem Details: If inode is compressed, but not encrypted, it missed to call f2fs_wait_on_block_writeback() to wait for GCed page writeback in IPU write path. Thread A GC-Thread - f2fs_gc - do_garbage_collect - gc_data_segment - move_data_block - f2fs_submit_page_write ...
```diff diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 27015b7875ae..dce8defdf4c7 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -2556,9 +2556,6 @@ int f2fs_encrypt_one_page(struct f2fs_io_info *fio) page = fio->compressed_page ? fio->compressed_page : fio->page; - /* wait for GCed page writeback via MET...
4961acdd65c956e97c1a000c82d91a8c1cdbe44b
Analyze and fix the following issue in the Linux kernel code: f2fs: fix to tag gcing flag on page during block migration
Problem Details: It needs to add missing gcing flag on page during block migration, in order to garantee migrated data be persisted during checkpoint, otherwise out-of-order persistency between data and node may cause data corruption after SPOR. Similar issue was fixed by commit 2d1fe8a86bf5 ("f2fs: fix to tag gcing f...
```diff diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index b35be5799726..c5a4364c4482 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1036,8 +1036,10 @@ static void set_cluster_dirty(struct compress_ctx *cc) int i; for (i = 0; i < cc->cluster_size; i++) - if (cc->rpages[i]) + if (cc->rpages...
825f404776b4f9d5f4a35545ea2d258bb16c0d4e
Analyze and fix the following issue in the Linux kernel code: tools/nolibc: drop duplicated testcase ioctl_tiocinq
Problem Details: The same testcase is present on the line above. Fixes: b4844fa0bdb4 ("selftests/nolibc: implement a few tests for various syscalls") Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
```diff diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 2b71fb5fae4e..783c2a97c4e3 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -910,7 +910,6 @@ int run_syscall(int min, int max) CASE_TES...
d7233e2b758b927695e63e078fe55abcc6ecd3a2
Analyze and fix the following issue in the Linux kernel code: selftests/nolibc: introduce QEMU_ARCH_USER
Problem Details: While ppc64le shares the same executable with regular ppc64 the user variant needs has a dedicated executable. Introduce a new QEMU_ARCH_USER Makefile variable to accommodate that. Fixes: 17362f3d0bd3 ("selftests/nolibc: use qemu-system-ppc64 for ppc64le") Link: https://lore.kernel.org/r/20770915-noli...
```diff diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile index 546859c9f7ac..47f0fb52fe55 100644 --- a/tools/testing/selftests/nolibc/Makefile +++ b/tools/testing/selftests/nolibc/Makefile @@ -106,6 +106,9 @@ QEMU_ARCH_s390 = s390x QEMU_ARCH_loongarch = loongarch64 ...
07f679b50252dc9e3d0c19aca5801f82c230c527
Analyze and fix the following issue in the Linux kernel code: selftests/nolibc: fix testcase status alignment
Problem Details: Center-align all possible status reports. Before OK and FAIL were center-aligned in relation to each other but SKIPPED and FAILED would be left-aligned. Before: 7 environ_addr = <0x7fffef3e7c50> [OK] 8 environ_envp = <0x7fffef3e7c58> [FAIL]...
```diff diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 2f10541e6f38..e173014f6b66 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -150,11 +150,11 @@ static void result(int llen, enum RESULT r)...
8596ba324356a7392a6639024de8c9ae7a9fce92
Analyze and fix the following issue in the Linux kernel code: perf stat: Fix help message for --metric-no-threshold option
Problem Details: Copy-paste error led to help message for metric-no-threshold repeating that of metric-no-merge. Fixes: 1fd09e299bdd434b ("perf metric: Add --metric-no-threshold option") Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@i...
```diff diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index d22228eddccb..0bfa70791cfc 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1255,7 +1255,7 @@ static struct option stat_options[] = { OPT_BOOLEAN(0, "metric-no-merge", &stat_config.metric_no_merge, "do...
4e58aaeebb3c27993c734c99eae6881b196b1ddb
Analyze and fix the following issue in the Linux kernel code: rcu: Restrict access to RCU CPU stall notifiers
Problem Details: Although the RCU CPU stall notifiers can be useful for dumping state when tracking down delicate forward-progress bugs where NUMA effects cause cache lines to be delivered to a given CPU regularly, but always in a state that prevents that CPU from making forward progress. These bugs can be detected by...
```diff diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 65731b060e3f..b72e2049c487 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5302,6 +5302,12 @@ Dump ftrace buffer after r...
01940cd4a6b9c47995a0cdaaafdd459b0d2221a2
Analyze and fix the following issue in the Linux kernel code: MIPS: SGI-IP27: hubio: fix nasid kernel-doc warning
Problem Details: ip27-hubio.c:32: warning: Function parameter or member 'nasid' not described in 'hub_pio_map' ip27-hubio.c:32: warning: Excess function parameter 'hub' description in 'hub_pio_map' Fixes: 4bf841ebf17a ("MIPS: SGI-IP27: get rid of compact node ids") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> R...
```diff diff --git a/arch/mips/sgi-ip27/ip27-hubio.c b/arch/mips/sgi-ip27/ip27-hubio.c index 8352eb6403b4..c57f0d8f3218 100644 --- a/arch/mips/sgi-ip27/ip27-hubio.c +++ b/arch/mips/sgi-ip27/ip27-hubio.c @@ -21,7 +21,7 @@ static int force_fire_and_forget = 1; /** * hub_pio_map - establish a HUB PIO mapping * - * @...
e367e3c765f5477b2e79da0f1399aed49e2d1e37
Analyze and fix the following issue in the Linux kernel code: PCI: Add ACS quirk for more Zhaoxin Root Ports
Problem Details: Add more Root Port Device IDs to pci_quirk_zhaoxin_pcie_ports_acs() for some new Zhaoxin platforms. Fixes: 299bd044a6f3 ("PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports") Link: https://lore.kernel.org/r/20231211091543.735903-1-LeoLiu-oc@zhaoxin.com Signed-off-by: LeoLiuoc <LeoLiu-oc@zhaoxin.com>...
```diff diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ea476252280a..d55a3ffae4b8 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4699,17 +4699,21 @@ static int pci_quirk_xgene_acs(struct pci_dev *dev, u16 acs_flags) * But the implementation could block peer-to-peer transactions betwe...
c95e0a719820054b28ef8687cc05b8deeb1c9106
Analyze and fix the following issue in the Linux kernel code: iio: light: isl76682: remove unreachable code
Problem Details: The function isl76682_read_raw cannot execute return -EINVAL up to 145 lines, delete the invalid code. drivers/iio/light/isl76682.c:145 isl76682_read_raw() warn: ignoring unreachable code. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7698 S...
```diff diff --git a/drivers/iio/light/isl76682.c b/drivers/iio/light/isl76682.c index 0a7c3b09c3c0..cf6ddee44ffc 100644 --- a/drivers/iio/light/isl76682.c +++ b/drivers/iio/light/isl76682.c @@ -142,7 +142,6 @@ static int isl76682_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } - return -EINVA...
3a42709fa909e22b0be4bb1e2795aa04ada732a3
Analyze and fix the following issue in the Linux kernel code: smb: client: fix OOB in smb2_query_reparse_point()
Problem Details: Validate @ioctl_rsp->OutputOffset and @ioctl_rsp->OutputCount so that their sum does not wrap to a number that is smaller than @reparse_buf and we end up with a wild pointer as follows: BUG: unable to handle page fault for address: ffff88809c5cd45f #PF: supervisor read access in kernel mode #PF:...
```diff diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index a6f4948adcbb..8f6f0a38b886 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -3003,7 +3003,7 @@ static int smb2_query_reparse_point(const unsigned int xid, struct kvec *rsp_iov; struct smb2_ioctl_rsp *ioctl_rsp; struc...
90d025c2e953c11974e76637977c473200593a46
Analyze and fix the following issue in the Linux kernel code: smb: client: fix NULL deref in asn1_ber_decoder()
Problem Details: If server replied SMB2_NEGOTIATE with a zero SecurityBufferOffset, smb2_get_data_area() sets @len to non-zero but return NULL, so decode_negTokeninit() ends up being called with a NULL @security_blob: BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in ke...
```diff diff --git a/fs/smb/client/smb2misc.c b/fs/smb/client/smb2misc.c index 32dfa0f7a78c..e20b4354e703 100644 --- a/fs/smb/client/smb2misc.c +++ b/fs/smb/client/smb2misc.c @@ -313,6 +313,9 @@ static const bool has_smb2_data_area[NUMBER_OF_SMB2_COMMANDS] = { char * smb2_get_data_area_len(int *off, int *len, struct ...
af1689a9b7701d9907dfc84d2a4b57c4bc907144
Analyze and fix the following issue in the Linux kernel code: smb: client: fix potential OOBs in smb2_parse_contexts()
Problem Details: Validate offsets and lengths before dereferencing create contexts in smb2_parse_contexts(). This fixes following oops when accessing invalid create contexts from server: BUG: unable to handle page fault for address: ffff8881178d8cc3 #PF: supervisor read access in kernel mode #PF: error_code(0x0...
```diff diff --git a/fs/smb/client/cached_dir.c b/fs/smb/client/cached_dir.c index 59f6b8e32cc9..d64a306a414b 100644 --- a/fs/smb/client/cached_dir.c +++ b/fs/smb/client/cached_dir.c @@ -291,16 +291,23 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon, oparms.fid->mid = le64_to_cpu(o_rsp->hdr.MessageId)...
eec04ea119691e65227a97ce53c0da6b9b74b0b7
Analyze and fix the following issue in the Linux kernel code: smb: client: fix OOB in receive_encrypted_standard()
Problem Details: Fix potential OOB in receive_encrypted_standard() if server returned a large shdr->NextCommand that would end up writing off the end of @next_buffer. Fixes: b24df3e30cbf ("cifs: update receive_encrypted_standard to handle compounded responses") Cc: stable@vger.kernel.org Reported-by: Robert Morris <rt...
```diff diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index fcfb6566b899..a6f4948adcbb 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -4943,6 +4943,7 @@ receive_encrypted_standard(struct TCP_Server_Info *server, struct smb2_hdr *shdr; unsigned int pdu_length = server->pdu_siz...
f352ce99926048e12aa4281c32471031351aec98
Analyze and fix the following issue in the Linux kernel code: PCI: qcom: Fix potential deadlock when enabling ASPM
Problem Details: The qcom_pcie_enable_aspm() helper is called from pci_walk_bus() during host init to enable ASPM. Since pci_walk_bus() already holds a pci_bus_sem read lock, use pci_enable_link_state_locked() to enable link states in order to avoid a potential deadlock (e.g. in case someone takes a write lock before ...
```diff diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 6902e97719d1..13dbdfac98f2 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -970,7 +970,7 @@ static int qcom_pcie_enable_aspm(struct pci_dev *pdev, void *userdata...
49de0dc87965079a8e2803ee4b39f9d946259423
Analyze and fix the following issue in the Linux kernel code: PCI: vmd: Fix potential deadlock when enabling ASPM
Problem Details: The vmd_pm_enable_quirk() helper is called from pci_walk_bus() during probe to enable ASPM for controllers with VMD_FEAT_BIOS_PM_QUIRK set. Since pci_walk_bus() already holds a pci_bus_sem read lock, use pci_enable_link_state_locked() to enable link states in order to avoid a potential deadlock (e.g. ...
```diff diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index 94ba61fe1c44..0452cbc362ee 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -751,7 +751,7 @@ static int vmd_pm_enable_quirk(struct pci_dev *pdev, void *userdata) if (!(features & VMD_FEAT_BIOS_PM_QUIR...
718ab8226636a1a3a7d281f5d6a7ad7c925efe5a
Analyze and fix the following issue in the Linux kernel code: PCI/ASPM: Add pci_enable_link_state_locked()
Problem Details: Add pci_enable_link_state_locked() for enabling link states that can be used in contexts where a pci_bus_sem read lock is already held (e.g. from pci_walk_bus()). This helper will be used to fix a couple of potential deadlocks where the current helper is called with the lock already held, hence the CC...
```diff diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 50b04ae5c394..5eb462772354 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -1109,17 +1109,7 @@ int pci_disable_link_state(struct pci_dev *pdev, int state) } EXPORT_SYMBOL(pci_disable_link_state); -/** - * pci_enable_l...
b96ab339ee50470d13a1faa6ad94d2218a7cd49f
Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Restore guard against default backlight value < 1 nit
Problem Details: Mark reports that brightness is not restored after Xorg dpms screen blank. This behavior was introduced by commit d9e865826c20 ("drm/amd/display: Simplify brightness initialization") which dropped the cached backlight value in display code, but also removed code for when the default value read back wa...
```diff diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index 996e4ee99023..e5cfaaef70b3 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/l...
f528ee145bd0076cd0ed7e7b2d435893e6329e98
Analyze and fix the following issue in the Linux kernel code: drm/amd/display: fix hw rotated modes when PSR-SU is enabled
Problem Details: We currently don't support dirty rectangles on hardware rotated modes. So, if a user is using hardware rotated modes with PSR-SU enabled, use PSR-SU FFU for all rotated planes (including cursor planes). Cc: stable@vger.kernel.org Fixes: 30ebe41582d1 ("drm/amd/display: add FB_DAMAGE_CLIPS support") Rep...
```diff diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index b452796fc6d3..c8c00c2a5224 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5182,6 +5182,9 @@ static void fill_dc_dir...
dbfbf4740e40fbd39ceeb5c42ab301ac2edd7a9f
Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: fix pp_*clk_od typo
Problem Details: Fix pp_dpm_sclk_od and pp_dpm_mclk_od typos. Those were defined as pp_*clk_od but used as pp_dpm_*clk_od instead. This change removes the _dpm part. Fixes: 8cfd6a05750c ("drm/amd/pm: Hide irrelevant pm device attributes") Signed-off-by: Dmitrii Galantsev <dmitrii.galantsev@amd.com> Reviewed-by: Lijo L...
```diff diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c index ca2ece24e1e0..49028dde0f87 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c @@ -2198,10 +2198,10 @@ static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_ ...
9fd2fbaabdb9dba947d1c14e5f4f217bc21afc34
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix buffer funcs setting order on suspend harder
Problem Details: Part of commit dab96d8b61aa ("drm/amdgpu: fix buffer funcs setting order on suspend") got dropped accidently. Add it back. Fixes: dab96d8b61aa ("drm/amdgpu: fix buffer funcs setting order on suspend") Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 1f64d8cbb14d..8dee52ce26d0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4516,8 +4516,6 @@ int amdgpu_device_suspend(struct drm_device *dev, b...
dc96528b176fa6e55a3dc01060fe9d97be450ce9
Analyze and fix the following issue in the Linux kernel code: ASoC: cs42l43: Don't enable bias sense during type detect
Problem Details: Alas on some headsets the bias sense can cause problems with the type detection. It can occasionally be falsely triggered by the type detect itself and as the clamp is applied when this happens, it will cause a headset to be incorrectly identified as headphones. As such it should be disabled whilst run...
```diff diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c index 73454de068cf..54a3ea606443 100644 --- a/sound/soc/codecs/cs42l43-jack.c +++ b/sound/soc/codecs/cs42l43-jack.c @@ -237,7 +237,7 @@ error: return ret; } -static void cs42l43_start_hs_bias(struct cs42l43_codec *priv, bool for...
50d7cdf7a9b1ab6f4f74a69c84e974d5dc0c1bf1
Analyze and fix the following issue in the Linux kernel code: efi/x86: Avoid physical KASLR on older Dell systems
Problem Details: River reports boot hangs with v6.6 and v6.7, and the bisect points to commit a1b87d54f4e4 ("x86/efistub: Avoid legacy decompressor when doing EFI boot") which moves the memory allocation and kernel decompression from the legacy decompressor (which executes *after* ExitBootServices()) to the EFI stu...
```diff diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 1bfdae34df39..da9b7b8d0716 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -307,17 +307,20 @@ static void setup_unaccepted_memory(void) efi_err("Memory ac...
4ee632c82d2dbb9e2dcc816890ef182a151cbd99
Analyze and fix the following issue in the Linux kernel code: dmaengine: fsl-edma: fix DMA channel leak in eDMAv4
Problem Details: Allocate channel count consistently increases due to a missing source ID (srcid) cleanup in the fsl_edma_free_chan_resources() function at imx93 eDMAv4. Reset 'srcid' at fsl_edma_free_chan_resources(). Cc: stable@vger.kernel.org Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support") Signed...
```diff diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 6a3abe5b1790..b53f46245c37 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -828,6 +828,7 @@ void fsl_edma_free_chan_resources(struct dma_chan *chan) dma_pool_destroy(fsl_chan->tcd_pool); fsl_ch...
b6b2264ba2090bb63665458e4b9369781df7dd4d
Analyze and fix the following issue in the Linux kernel code: iommu/apple-dart: Fix spelling mistake "grups" -> "groups"
Problem Details: There is a spelling mistake in a dev_err message. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20231209231240.4056082-1-colin.i.king@gmail.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
```diff diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c index 7438e9c82ba9..497a516747bd 100644 --- a/drivers/iommu/apple-dart.c +++ b/drivers/iommu/apple-dart.c @@ -911,7 +911,7 @@ static struct iommu_group *apple_dart_device_group(struct device *dev) ret = apple_dart_merge_master_cfg(group_m...
b6961d187fcd138981b8707dac87b9fcdbfe75d1
Analyze and fix the following issue in the Linux kernel code: drm/mediatek: Fix access violation in mtk_drm_crtc_dma_dev_get
Problem Details: Add error handling to check NULL input in mtk_drm_crtc_dma_dev_get function. While display path is not configured correctly, none of crtc is established. So the caller of mtk_drm_crtc_dma_dev_get may pass input parameter *crtc as NULL, Which may cause coredump when we try to get the container of NULL ...
```diff diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 0a7d60c191b8..db43f9dff912 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -926,7 +926,14 @@ static int mtk_drm_crtc_init_comp_planes(struct drm_device *drm_...
02a914ed475dd928c7b2b6c9d1da9b0b27fa724d
Analyze and fix the following issue in the Linux kernel code: ASoC: Intel: soc-acpi-intel-mtl-match: Change CS35L56 prefixes to AMPn
Problem Details: Change the ALSA prefix for the CS35L56 to "AMPn". This keeps them consistent with the CS35L56 HDA driver. It also avoids coding the chip ID into the control name, so that other Cirrus amps with the same controls can have the same control names. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus....
```diff diff --git a/sound/soc/intel/common/soc-acpi-intel-mtl-match.c b/sound/soc/intel/common/soc-acpi-intel-mtl-match.c index 301b8142d554..9008b6768205 100644 --- a/sound/soc/intel/common/soc-acpi-intel-mtl-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-mtl-match.c @@ -306,13 +306,13 @@ static const struct snd...